Click on the third or sixth rank to set the en passant target square.

EGTB: win in 2 half-moves

# move score
1 Rb1 win in 1 half-moves
2 Kc5 draw
3 Kd5 draw
4 Kd6 draw
5 Kd7 draw
6 Rb4 draw
7 Kc7 loss in 18 half-moves
8 Rb6 loss in 18 half-moves
9 Kb6 loss in 8 half-moves
10 Rc8 loss in 8 half-moves
11 Kb5 loss in 6 half-moves
12 Kb7 loss in 6 half-moves
13 Ra8 loss in 6 half-moves
14 Rb2 loss in 2 half-moves
15 Rb3 loss in 2 half-moves
16 Rb5 loss in 2 half-moves
17 Rb7 loss in 2 half-moves
18 Rd8 loss in 2 half-moves
19 Re8 loss in 2 half-moves
20 Rf8 loss in 2 half-moves
21 Rg8 loss in 2 half-moves
22 Rh8 loss in 2 half-moves